Override Header Color
Override Header Color allows you control over the color of the header titles in the articles on all site pages.
To change the header color, specify a color name (eg. steelblue) or a hexadecimal color code (eg. #4682B4).
If using color name, it must be one of 147 names supported by commonly used modern browsers or the target system browser
Click the Update button at the bottom to apply the change.
A server restart is required for the update to be applied.
After the restart, it should take you to the default tab's first article.
The new custom header color should now display.